Zobrazeno 1 - 10
of 13
pro vyhledávání: '"Stefan Rechenberger"'
Publikováno v:
Physics Letters B, Vol 755, Iss , Pp 265-269 (2016)
We study the effect of an external magnetic field on the chiral phase transition in the theory of the strong interaction by means of a renormalization-group (RG) fixed-point analysis, relying on only one physical input parameter, the strong coupling
Externí odkaz:
https://doaj.org/article/d16254c889e0458bb63324b1afbc024d
The phase diagram of the $(1 + 1)$-dimensional Gross-Neveu model is reanalyzed for (non-)zero chemical potential and (non-)zero temperature within the mean-field approximation. By investigating the momentum dependence of the bosonic two-point functio
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::4db769411fcf744bb34fbcb8f1fce9ac
Publikováno v:
EPJ Web of Conferences, Vol 137, p 03022 (2017)
The QCD phase diagram at finite temperature and density has attracted considerable interest over many decades now, not least because of its relevance for a better understanding of heavy-ion collision experiments. Models provide some insight into the
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::b81f7b522c47536810e877b69c2ef837
http://publikationen.ub.uni-frankfurt.de/files/31770/epjconf_conf2017_03022.pdf
http://publikationen.ub.uni-frankfurt.de/files/31770/epjconf_conf2017_03022.pdf
Autor:
Stefan Rechenberger
The phase diagram of strong interaction matter is analyzed utilizing the Nambu--Jona-Lasinio model. Special emphasis is placed on its dependence on an external magnetic field and isospin chemical potential. Using flavor mixing induced by instanton ef
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::4c2c28e44fe5e6bd695697767e22124f
http://arxiv.org/abs/1612.07541
http://arxiv.org/abs/1612.07541
Nambu--Jona-Lasinio-type models have been used extensively to study the dynamics of the theory of the strong interaction at finite temperature and quark chemical potential on a phenomenological level. In addition to these studies, which are often per
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::477f134b00075a5784f86d1cfa0656fd
http://arxiv.org/abs/1510.04012
http://arxiv.org/abs/1510.04012
Publikováno v:
European Physical Journal C.
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=dedup_wf_001::53e9568258b03e6f98ce8e842ba7d39b
We investigate chiral Higgs-Yukawa models with a non-abelian gauged left-handed sector reminiscent to a sub-sector of the standard model. We discover a new weak-coupling fixed-point behavior that allows for ultraviolet complete RG trajectories which
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::a21d83dc1d6cc7a829d362c5db8cbd41
Autor:
Frank Saueressig, Stefan Rechenberger
Publikováno v:
Physical Review D. 86
Within the gravitational asymptotic safety program, the renormalization group (RG) flow of the ${R}^{2}$ truncation in three and four spacetime dimensions is analyzed in detail. In particular, we construct RG trajectories which emanate from the non-G
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::07c806bb5488475bb5cd6979167c96b9
https://doi.org/10.1103/physrevd.86.024018
https://doi.org/10.1103/physrevd.86.024018
Autor:
Frank Saueressig, Stefan Rechenberger
We derive an exact functional renormalization group equation for the projectable version of Ho\v{r}ava-Lifshitz gravity. The flow equation encodes the gravitational degrees of freedom in terms of the lapse function, shift vector and spatial metric an
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::addffc72a078d091ccb81ab77a5a0d4d
Publikováno v:
Physical review letters. 106(25)
The gravitational asymptotic safety program strives for a consistent and predictive quantum theory of gravity based on a non-trivial ultraviolet fixed point of the renormalization group (RG) flow. We investigate this scenario by employing a novel fun
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::5f492cebb864708962c99efee2f27a95
https://pubmed.ncbi.nlm.nih.gov/21770628
https://pubmed.ncbi.nlm.nih.gov/21770628